People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Isabelle Santos | Black | Apex Jiu Jitsu Academy |
| Isabelle Sharples | White | BLUE MOUNTAINS MARTIAL ARTS CENTRE |
| Isabelle Shearsby | Unknown belt | The Jiu-Jitsu Studio Darwin |
| Isabelle Vaneris | Grey | Gracie Barra Bondi |
| Isabelle Woodhead | Unknown belt | Journey Jiu-Jitsuㅤ |
| Isadora Silva De Hollanda Albuquerque | Blue | Gracie Barra Hornsby |
| Isaiah Al-Ali | White | High Rollers |
| Isaiah Black | Blue | Complete Mixed Martial Arts |
| Isaiah Bose | White | MYBJJ TEAM |
| Isaiah Cannon | White | TRINITY Australia |
| Isaiah Duncan | White | CAZA BJJ Australia |
| Isaiah Girren | Blue | EQUIPE MESTRE WILSON JIU-JITSU AUSTRALIA |
| Isaiah Hanna | White | Gracie Barra Carlton |
| Isaiah Harris | White | Rob Williams BJJ |
| Isaiah Kevorkian | Grey | Gracie Barra Sydney |
| Isaiah Middleton | Blue | Kings Academy Australia |
| Isaiah Mohamed Black | Blue | Complete Mixed Martial Arts |
| Isaiah Osman | Grey | The Grappling Lab Prestons |
| Isaiah Paul-Nguyen | Grey | GCJ Academy |
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